''Hylaeus nubilosus'' is a

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

of insect within the

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

'' Hylaeus''. It is commonly referred to as the cloudy masked bee.

Description

''Hylaeus nubilosus'' is a medium-sized (6–9 mm) masked bee with a conspicuous yellow thoracic badge in the middle of the scutellum and metanotum.Prendergast, Kit. (2017). ESTABLISHMENT OF THE EAST AUSTRALIAN MASKED BEE HYLAEUS NUBILOSUS (SMITH) (HYMENOPTERA: COLLETIDAE: HYLAEINAE) IN WESTERN AUSTRALIA. Australian Entomologist. 44. 213–218.

Range

Endemic to the eastern States of Australia. It is also recorded from several suburban sites in the Perth region of southwestern Western Australia.

Habitat

''Hylaeus nubilosus'' prefers to nest in abandoned nests of mud-dauber wasps such as

Sphecidae The Sphecidae are a cosmopolitan family of wasps of the suborder Apocrita that includes sand wasps, mud daubers, and other thread-waisted wasps. The name Sphecidae was formerly given to a much larger grouping of wasps. This was found to be p ...

and potter wasps

Eumeninae Potter wasps (or mason wasps), the Eumeninae, are a cosmopolitan wasp group presently treated as a subfamily of Vespidae, but sometimes recognized in the past as a separate family, Eumenidae. Recognition Most eumenine species are black or brown, ...

References

Insects described in 1853 Colletidae Insects of Australia {{bee-stub